Finding the Fourth Proportional to 5,196.23, 7,170.96 and 2,958.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.23 : 7,170.96 = 2,958.05 : x
2. Step 2: Convert to fraction form
   5,196.23/7,170.96 = 2,958.05/x
3. Step 3: Cross multiply
   5,196.23x = 7,170.96 × 2,958.05
4. Step 4: Simplify right side
   5,196.23x = 21,212,058.23
5. Step 5: Solve for x
   x = 21,212,058.23/5,196.23
6. Step 6: Final answer
   x = 4,082.20